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AngularJS automatic form validation_AngularJS

WBOYOriginal: 2016-05-16 15:16:441103browse

Another form verification method of AngularJS is automatic verification, which is implemented through directives. In addition to the directives that come with AngularJS, you also need to use the third-party module angular-auto-validate.

About angular-auto-validate:

Installation: npm i angular-auto-validate
Quote: b4e9f4e8d58ad62774aad8e6d2549ab22cacc6d41bbb37262a98f745aa00fbf0
module dependency: var myApp = angular.module("app", ["jcs-autoValidate"]);

In order to localize error messages, you also need the third-party module angular-localize:

Installation: npm install angular-localize --save
Module dependency: var myApp = angular.module("app", ["localize"]);
Quote:

<script src="../node_modules/angular-sanitize/angular-sanitize.min.js"></script>
<script src="../node_modules/angular-localize/angular-localize.min.js"></script>

In addition, when you click the submit form button, you need to disable the button and display a waiting effect. You need to use the third-party module angular-ladda:

Installation: bower install angular-ladda --save
module dependency: var myApp = angular.module("app", ["angular-ladda"]);
Quote:

<link rel="stylesheet" href="../bower_components/ladda/dist/ladda-themeless.min.css"/>

<script src="../bower_components/ladda/dist/spin.min.js"></script>
<script src="../bower_components/ladda/dist/ladda.min.js"></script>
<script src="../bower_components/angular-ladda/dist/angular-ladda.min.js"></script>

The page is as follows:

<html>
<head>
 <meta charset="gb2312">
 <title></title>
 <link rel="stylesheet" href="../node_modules/bootstrap/dist/css/bootstrap.min.css"/>
 <link rel="stylesheet" href="../bower_components/ladda/dist/ladda-themeless.min.css"/>
 <link rel="stylesheet" href="../css/main.css"/>
</head>
<body>
<nav class="navbar navbar-inverse navbar-fixed-top">
 <div class="container">
 <div class="navbar-header">
  <a href="/" class="navbar-brand">Form Validating Auto</a>
 </div>
 </div>
</nav>

<div class="container main-content" ng-controller="myCtrl1">
 <!--novalidate让表单不要使用html验证-->
 <!--theForm变成scope的一个字段-->
 <form ng-submit="onSubmit()" novalidate="novalidate">
 <div class="form-group">
  <label for="name" class="control-label">Name</label>
  <input type="text" class="form-control" id="name" ng-model="formModel.name" required="required"/>
 </div>

 <div class="form-group">
  <label for="email" class="control-label">Email</label>
  <input type="email" class="form-control" id="email" ng-model="formModel.email" required="required"/>

 </div>

 <div class="form-group">
  <label for="username" class="control-label">Username</label>
  <input type="text"
    class="form-control"
    id="username"
    ng-model="formModel.username"
    required="required"
    ng-pattern="/^[A-Za-z0-9_]{1,32}$/"
    ng-minlength="7"
    ng-pattern-err-type="badUsername"
  />
 </div>

 <div class="form-group">
  <label for="age" class="control-label">Age</label>
  <input type="number"
    class="form-control"
    id="age"
    ng-model="formModel.age"
    required="required"
    min="18"
    max="65"
    ng-min-err-type="tooYoung"
    ng-max-err-type="tooOld"
  />
 </div>

 <div class="form-group">
  <label for="sex" class="control-label">Sex</label>
  <select name="sex" id="sex" class="form-control" ng-model="formModel.sex" required="required">
  <option value="">Please choose</option>
  <option value="male">Mail</option>
  <option value="femail">Femail</option>
  </select>
 </div>

 <div class="form-group">
  <label for="password" class="control-label">Password</label>
  <input type="text" class="form-control" id="password" ng-model="formModel.password" required="required" ng-minlength="6"/>
 </div>

 <div class="form-group">
  <!--<button class="btn btn-primary" ng-click="onSubmit()">Register</button>-->
  <button class="btn btn-primary"
    ladda = "submitting"
    data-style="expand-right"
    type="submit">
  <span ng-show="submitting">正在注册...</span>
  <span ng-show="!submitting">注册</span>
  </button>
 </div>

  <pre class="brush:php;toolbar:false">
  {{formModel | json}}

Look at the submit button first:

<div class="form-group">
 <!--<button class="btn btn-primary" ng-click="onSubmit()">Register</button>-->
 <button class="btn btn-primary"
   ladda = "submitting"
   data-style="expand-right"
   type="submit">
 <span ng-show="submitting">正在注册...</span>
 <span ng-show="!submitting">注册</span>
 </button>
</div>

The value of the ladda attribute is a bool value. true means that the dynamic waiting effect is displayed, false does not display the dynamic waiting effect. Submitting here is an attribute in the scope
data-style="expand-right" means to display dynamic waiting effect on the right side of the button

Take the Age field in the form as an example:

<div class="form-group">
 <label for="age" class="control-label">Age</label>
 <input type="number"
   class="form-control"
   id="age"
   ng-model="formModel.age"
   required="required"
   min="18"
   max="65"
   ng-min-err-type="tooYoung"
   ng-max-err-type="tooOld"
 />
</div>

Among them, min, max are the directives of AgularJS, and ng-min-err-type is the directive of angular-auto-validate. The convention followed here is the directive name -err-type of ng-AngularJS form validation. What are the functions of tooYoung and tooOld, and where are they used?

is used at the module level and is defined in the form_validation_auto.js file.

var myApp1 = angular.module('myApp1',['jcs-autoValidate','localize','angular-ladda']);

myApp1.run(function(defaultErrorMessageResolver){
 defaultErrorMessageResolver.getErrorMessages().then(function(errorMessages){
  errorMessages['tooYoung'] = '年龄必须小于{0}';
  errorMessages['tooOld'] = '年龄不能大于{0}';
  errorMessages['badUsername'] = '用户名只能包含数字、字母或下划线';
 });
});

myApp1.controller('myCtrl1', function($scope, $http){
 $scope.formModel = {};
 $scope.submitting = false;

 $scope.onSubmit = function(){

  $scope.submitting = true;
  console.log('已提交');
  console.log($scope.formModel);

  $http.post('url',$scope.formModel)
   .success(function(data){
    console.log(':)');
    $scope.submitting = false;
   })
   .error(function(data){
    console.log(':(');
    $scope.submitting = false;
   });
 };
});

The above is the entire content of this article. I hope I can become proficient in AngularJS manual form verification.

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